/////////////////////////////////////////////////////////////////////////////
// This file is part of the "Java-DAP" project, a Java implementation
// of the OPeNDAP Data Access Protocol.
//
// Copyright (c) 2007 OPeNDAP, Inc.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
/////////////////////////////////////////////////////////////////////////////
using System;
using NDODS.DAP.BaseTypes;

namespace NDODS.DAP.Server
{
	
	/// <summary> The RelOps interface defines how each type responds to relational
	/// operators. Most (all?) types will not have sensible responses to all of
	/// the relational operators (e.g. DByte won't know how to match a regular
	/// expression but DString will). For those operators that are nonsensical a
	/// class should throw InvalidOperator.
	/// 
	/// </summary>
	/// <author>  jhrg
	/// </author>
	/// <version>  $Revision: 15901 $
	/// </version>
	
	public interface IRelOps
	{
		bool equal(BaseType bt);
		
		bool not_equal(BaseType bt);
		
		bool greater(BaseType bt);
		
		bool greater_eql(BaseType bt);
		
		bool less(BaseType bt);
		
		bool less_eql(BaseType bt);
		
		bool regexp(BaseType bt);
	}
}